Results 21 to 30 of about 128,875 (269)

A non-autonomous chaotic system and its application in weak signal detection

Shenzhen Daxue xuebao. Ligong ban, 2023
To effectively detect weak useful signals embedded in strong noise, we constructe a three-dimensional dissipative chaotic system with rich dynamic behavior. By using the numerical simulation methods including phase diagrams, Lyapunov exponent spectra and
YAN Shaohui, SONG Jincai, SUN Xi, WANG Ertong, ZHANG Yuyan   +4 more
doaj   +1 more source

Dynamic seed rotation growth of two-dimensional perovskite single crystals for high-performance x-ray detect

Next Materials
Two-dimensional organic-inorganic hybrid perovskite materials are considered to have great potential for radiation detection due to their outstanding operational stability and excellent optoelectronic properties.
Cuiling Fang, Shiyu Liu, Yingming Wen, Mingxing Chen, Na Wang, Wang Luo, Yan Feng, Haiquan Yao, Heng-Yun Ye, Lang Liu   +9 more
doaj   +1 more source

A Framework for Analyzing, Designing, and Visualizing Spiking Neural Networks Part I: Linear Response Surfaces

IEEE Access, 2021
In this first of two closely related papers, we set the foundation for a new framework, called Response Surfaces (RSs), to address fundamental problems of analyzing, designing, and visualizing spiking neurons and networks.
Fatemeh Koohestan-Mahalian, Neil E. Cotter, Princess Tara Zamani, Audrey M. Rubart   +3 more
doaj   +1 more source

Analysis of Generalized Nonlinear Quadrature for Novel Fractional-Order Chaotic Systems Using Sinc Shape Function

Mathematics, 2023
This paper introduces the generalized fractional differential quadrature method, which is based on the generalized Caputo type and is used for the first time to solve nonlinear fractional differential equations.
Abdelfattah Mustafa, Reda S. Salama, Mokhtar Mohamed   +2 more
doaj   +1 more source

A New Chaotic-Based RGB Image Encryption Technique Using a Nonlinear Rotational 16 × 16 DNA Playfair Matrix

Cryptography, 2022
Due to great interest in the secure storage and transmission of color images, the necessity for an efficient and robust RGB image encryption technique has grown.
Dina Ibrahim, Kareem Ahmed, Mohamed Abdallah, AbdElmgeid A. Ali   +3 more
doaj   +1 more source

A New No Equilibrium Fractional Order Chaotic System, Dynamical Investigation, Synchronization, and Its Digital Implementation

Inventions, 2021
In this paper, a new fractional order chaotic system without equilibrium is proposed, analytically and numerically investigated, and numerically and experimentally tested.
Zain-Aldeen S. A. Rahman, Basil H. Jasim, Yasir I. A. Al-Yasir, Raed A. Abd-Alhameed, Bilal Naji Alhasnawi   +4 more
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

Noncollinear ferroelectric and screw-type antiferroelectric phases in a metal-free hybrid molecular crystal

Nature Communications
Noncollinear dipole textures greatly extend the scientific merits and application perspective of ferroic materials. In fact, noncollinear spin textures have been well recognized as one of the core issues of condensed matter, e.g.
Na Wang, Zhong Shen, Wang Luo, Hua-Kai Li, Ze-Jiang Xu, Chao Shi, Heng-Yun Ye, Shuai Dong, Le-Ping Miao   +8 more
doaj   +1 more source

Electronically Tunable 3D Autonomous Chaotic Oscillator Employing Single CCCFA and Its Extension to 4D

IEEE Access, 2022
This work presents the realization of a novel electronically tuneable third-order autonomous chaotic oscillator using a current-controlled current conveyor feedback amplifier (CCCFA).
Garima Shukla, Sajal K. Paul
doaj   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

Advanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli, Mayumi A. Nakahashi, Vitor E. Pinotti, Felipe O. C. Bernardo, Lidiane C. Costa, Francisco G. Coury, Ronei C. de Oliveira, Adilson J. A. de Oliveira, Carlos E. H. Ventura, Piter Gargarella   +9 more
wiley   +1 more source